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TypeNodeResolver.php
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<?php declare(strict_types = 1);
namespace PHPStan\PhpDoc;
use Closure;
use Generator;
use Iterator;
use IteratorAggregate;
use Nette\Utils\Strings;
use PhpParser\Node\Name;
use PHPStan\Analyser\ConstantResolver;
use PHPStan\Analyser\NameScope;
use PHPStan\PhpDoc\Tag\TemplateTag;
use PHPStan\PhpDocParser\Ast\ConstExpr\ConstExprArrayNode;
use PHPStan\PhpDocParser\Ast\ConstExpr\ConstExprFalseNode;
use PHPStan\PhpDocParser\Ast\ConstExpr\ConstExprFloatNode;
use PHPStan\PhpDocParser\Ast\ConstExpr\ConstExprIntegerNode;
use PHPStan\PhpDocParser\Ast\ConstExpr\ConstExprNullNode;
use PHPStan\PhpDocParser\Ast\ConstExpr\ConstExprStringNode;
use PHPStan\PhpDocParser\Ast\ConstExpr\ConstExprTrueNode;
use PHPStan\PhpDocParser\Ast\ConstExpr\ConstFetchNode;
use PHPStan\PhpDocParser\Ast\Type\ArrayShapeNode;
use PHPStan\PhpDocParser\Ast\Type\ArrayTypeNode;
use PHPStan\PhpDocParser\Ast\Type\CallableTypeNode;
use PHPStan\PhpDocParser\Ast\Type\CallableTypeParameterNode;
use PHPStan\PhpDocParser\Ast\Type\ConditionalTypeForParameterNode;
use PHPStan\PhpDocParser\Ast\Type\ConditionalTypeNode;
use PHPStan\PhpDocParser\Ast\Type\ConstTypeNode;
use PHPStan\PhpDocParser\Ast\Type\GenericTypeNode;
use PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode;
use PHPStan\PhpDocParser\Ast\Type\IntersectionTypeNode;
use PHPStan\PhpDocParser\Ast\Type\InvalidTypeNode;
use PHPStan\PhpDocParser\Ast\Type\NullableTypeNode;
use PHPStan\PhpDocParser\Ast\Type\ObjectShapeNode;
use PHPStan\PhpDocParser\Ast\Type\OffsetAccessTypeNode;
use PHPStan\PhpDocParser\Ast\Type\ThisTypeNode;
use PHPStan\PhpDocParser\Ast\Type\TypeNode;
use PHPStan\PhpDocParser\Ast\Type\UnionTypeNode;
use PHPStan\Reflection\Callables\SimpleImpurePoint;
use PHPStan\Reflection\InitializerExprContext;
use PHPStan\Reflection\InitializerExprTypeResolver;
use PHPStan\Reflection\Native\NativeParameterReflection;
use PHPStan\Reflection\PassedByReference;
use PHPStan\Reflection\ReflectionProvider;
use PHPStan\ShouldNotHappenException;
use PHPStan\TrinaryLogic;
use PHPStan\Type\Accessory\AccessoryArrayListType;
use PHPStan\Type\Accessory\AccessoryLiteralStringType;
use PHPStan\Type\Accessory\AccessoryLowercaseStringType;
use PHPStan\Type\Accessory\AccessoryNonEmptyStringType;
use PHPStan\Type\Accessory\AccessoryNonFalsyStringType;
use PHPStan\Type\Accessory\AccessoryNumericStringType;
use PHPStan\Type\Accessory\AccessoryUppercaseStringType;
use PHPStan\Type\Accessory\NonEmptyArrayType;
use PHPStan\Type\ArrayType;
use PHPStan\Type\BenevolentUnionType;
use PHPStan\Type\BooleanType;
use PHPStan\Type\CallableType;
use PHPStan\Type\ClassStringType;
use PHPStan\Type\ClosureType;
use PHPStan\Type\ConditionalType;
use PHPStan\Type\ConditionalTypeForParameter;
use PHPStan\Type\Constant\ConstantArrayType;
use PHPStan\Type\Constant\ConstantArrayTypeBuilder;
use PHPStan\Type\Constant\ConstantBooleanType;
use PHPStan\Type\Constant\ConstantFloatType;
use PHPStan\Type\Constant\ConstantIntegerType;
use PHPStan\Type\Constant\ConstantStringType;
use PHPStan\Type\Enum\EnumCaseObjectType;
use PHPStan\Type\ErrorType;
use PHPStan\Type\FloatType;
use PHPStan\Type\Generic\GenericClassStringType;
use PHPStan\Type\Generic\GenericObjectType;
use PHPStan\Type\Generic\GenericStaticType;
use PHPStan\Type\Generic\TemplateType;
use PHPStan\Type\Generic\TemplateTypeFactory;
use PHPStan\Type\Generic\TemplateTypeMap;
use PHPStan\Type\Generic\TemplateTypeScope;
use PHPStan\Type\Generic\TemplateTypeVariance;
use PHPStan\Type\Helper\GetTemplateTypeType;
use PHPStan\Type\IntegerRangeType;
use PHPStan\Type\IntegerType;
use PHPStan\Type\IntersectionType;
use PHPStan\Type\IterableType;
use PHPStan\Type\KeyOfType;
use PHPStan\Type\MixedType;
use PHPStan\Type\NewObjectType;
use PHPStan\Type\NonAcceptingNeverType;
use PHPStan\Type\NonexistentParentClassType;
use PHPStan\Type\NullType;
use PHPStan\Type\ObjectShapeType;
use PHPStan\Type\ObjectType;
use PHPStan\Type\ObjectWithoutClassType;
use PHPStan\Type\OffsetAccessType;
use PHPStan\Type\ResourceType;
use PHPStan\Type\StaticType;
use PHPStan\Type\StaticTypeFactory;
use PHPStan\Type\StringAlwaysAcceptingObjectWithToStringType;
use PHPStan\Type\StringType;
use PHPStan\Type\ThisType;
use PHPStan\Type\Type;
use PHPStan\Type\TypeAliasResolver;
use PHPStan\Type\TypeAliasResolverProvider;
use PHPStan\Type\TypeCombinator;
use PHPStan\Type\TypeUtils;
use PHPStan\Type\UnionType;
use PHPStan\Type\ValueOfType;
use PHPStan\Type\VoidType;
use Traversable;
use function array_key_exists;
use function array_map;
use function array_values;
use function count;
use function explode;
use function get_class;
use function in_array;
use function max;
use function min;
use function preg_match;
use function preg_quote;
use function str_contains;
use function str_replace;
use function str_starts_with;
use function strtolower;
use function substr;
final class TypeNodeResolver
{
/** @var array<string, true> */
private array $genericTypeResolvingStack = [];
public function __construct(
private TypeNodeResolverExtensionRegistryProvider $extensionRegistryProvider,
private ReflectionProvider\ReflectionProviderProvider $reflectionProviderProvider,
private TypeAliasResolverProvider $typeAliasResolverProvider,
private ConstantResolver $constantResolver,
private InitializerExprTypeResolver $initializerExprTypeResolver,
)
{
}
/** @api */
public function resolve(TypeNode $typeNode, NameScope $nameScope): Type
{
foreach ($this->extensionRegistryProvider->getRegistry()->getExtensions() as $extension) {
$type = $extension->resolve($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
}
if ($typeNode instanceof IdentifierTypeNode) {
return $this->resolveIdentifierTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof ThisTypeNode) {
return $this->resolveThisTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof NullableTypeNode) {
return $this->resolveNullableTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof UnionTypeNode) {
return $this->resolveUnionTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof IntersectionTypeNode) {
return $this->resolveIntersectionTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof ConditionalTypeNode) {
return $this->resolveConditionalTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof ConditionalTypeForParameterNode) {
return $this->resolveConditionalTypeForParameterNode($typeNode, $nameScope);
} elseif ($typeNode instanceof ArrayTypeNode) {
return $this->resolveArrayTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof GenericTypeNode) {
return $this->resolveGenericTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof CallableTypeNode) {
return $this->resolveCallableTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof ArrayShapeNode) {
return $this->resolveArrayShapeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof ObjectShapeNode) {
return $this->resolveObjectShapeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof ConstTypeNode) {
return $this->resolveConstTypeNode($typeNode, $nameScope);
} elseif ($typeNode instanceof OffsetAccessTypeNode) {
return $this->resolveOffsetAccessNode($typeNode, $nameScope);
} elseif ($typeNode instanceof InvalidTypeNode) {
return new MixedType(true);
}
return new ErrorType();
}
private function resolveIdentifierTypeNode(IdentifierTypeNode $typeNode, NameScope $nameScope): Type
{
switch (strtolower($typeNode->name)) {
case 'int':
return new IntegerType();
case 'integer':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return new IntegerType();
case 'positive-int':
return IntegerRangeType::fromInterval(1, null);
case 'negative-int':
return IntegerRangeType::fromInterval(null, -1);
case 'non-positive-int':
return IntegerRangeType::fromInterval(null, 0);
case 'non-negative-int':
return IntegerRangeType::fromInterval(0, null);
case 'non-zero-int':
return new UnionType([
IntegerRangeType::fromInterval(null, -1),
IntegerRangeType::fromInterval(1, null),
]);
case 'string':
return new StringType();
case 'lowercase-string':
return new IntersectionType([new StringType(), new AccessoryLowercaseStringType()]);
case 'uppercase-string':
return new IntersectionType([new StringType(), new AccessoryUppercaseStringType()]);
case 'literal-string':
return new IntersectionType([new StringType(), new AccessoryLiteralStringType()]);
case 'class-string':
case 'interface-string':
case 'trait-string':
return new ClassStringType();
case 'enum-string':
return new GenericClassStringType(new ObjectType('UnitEnum'));
case 'callable-string':
return new IntersectionType([new StringType(), new CallableType()]);
case 'array-key':
return new BenevolentUnionType([new IntegerType(), new StringType()]);
case 'scalar':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return new UnionType([new IntegerType(), new FloatType(), new StringType(), new BooleanType()]);
case 'empty-scalar':
return TypeCombinator::intersect(
new UnionType([new IntegerType(), new FloatType(), new StringType(), new BooleanType()]),
StaticTypeFactory::falsey(),
);
case 'non-empty-scalar':
return TypeCombinator::remove(
new UnionType([new IntegerType(), new FloatType(), new StringType(), new BooleanType()]),
StaticTypeFactory::falsey(),
);
case 'number':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return new UnionType([new IntegerType(), new FloatType()]);
case 'numeric':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return new UnionType([
new IntegerType(),
new FloatType(),
new IntersectionType([
new StringType(),
new AccessoryNumericStringType(),
]),
]);
case 'numeric-string':
return new IntersectionType([
new StringType(),
new AccessoryNumericStringType(),
]);
case 'non-empty-string':
return new IntersectionType([
new StringType(),
new AccessoryNonEmptyStringType(),
]);
case 'non-empty-lowercase-string':
return new IntersectionType([
new StringType(),
new AccessoryNonEmptyStringType(),
new AccessoryLowercaseStringType(),
]);
case 'non-empty-uppercase-string':
return new IntersectionType([
new StringType(),
new AccessoryNonEmptyStringType(),
new AccessoryUppercaseStringType(),
]);
case 'truthy-string':
case 'non-falsy-string':
return new IntersectionType([
new StringType(),
new AccessoryNonFalsyStringType(),
]);
case 'non-empty-literal-string':
return new IntersectionType([
new StringType(),
new AccessoryNonEmptyStringType(),
new AccessoryLiteralStringType(),
]);
case 'bool':
return new BooleanType();
case 'boolean':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return new BooleanType();
case 'true':
return new ConstantBooleanType(true);
case 'false':
return new ConstantBooleanType(false);
case 'null':
return new NullType();
case 'float':
return new FloatType();
case 'double':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return new FloatType();
case 'array':
case 'associative-array':
return new ArrayType(new MixedType(), new MixedType());
case 'non-empty-array':
return TypeCombinator::intersect(
new ArrayType(new MixedType(), new MixedType()),
new NonEmptyArrayType(),
);
case 'iterable':
return new IterableType(new MixedType(), new MixedType());
case 'callable':
return new CallableType();
case 'pure-callable':
return new CallableType(null, null, true, null, null, [], TrinaryLogic::createYes());
case 'pure-closure':
return ClosureType::createPure();
case 'resource':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return new ResourceType();
case 'open-resource':
case 'closed-resource':
return new ResourceType();
case 'mixed':
return new MixedType(true);
case 'non-empty-mixed':
return new MixedType(true, StaticTypeFactory::falsey());
case 'void':
return new VoidType();
case 'object':
return new ObjectWithoutClassType();
case 'callable-object':
return new IntersectionType([new ObjectWithoutClassType(), new CallableType()]);
case 'callable-array':
return new IntersectionType([new ArrayType(new MixedType(), new MixedType()), new CallableType()]);
case 'never':
case 'noreturn':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return new NonAcceptingNeverType();
case 'never-return':
case 'never-returns':
case 'no-return':
return new NonAcceptingNeverType();
case 'list':
return TypeCombinator::intersect(new ArrayType(IntegerRangeType::createAllGreaterThanOrEqualTo(0), new MixedType()), new AccessoryArrayListType());
case 'non-empty-list':
return TypeCombinator::intersect(
new ArrayType(IntegerRangeType::createAllGreaterThanOrEqualTo(0), new MixedType()),
new NonEmptyArrayType(),
new AccessoryArrayListType(),
);
case 'empty':
$type = $this->tryResolvePseudoTypeClassType($typeNode, $nameScope);
if ($type !== null) {
return $type;
}
return StaticTypeFactory::falsey();
case '__stringandstringable':
return new StringAlwaysAcceptingObjectWithToStringType();
}
if ($nameScope->getClassName() !== null) {
switch (strtolower($typeNode->name)) {
case 'self':
return new ObjectType($nameScope->getClassName());
case 'static':
if ($this->getReflectionProvider()->hasClass($nameScope->getClassName())) {
$classReflection = $this->getReflectionProvider()->getClass($nameScope->getClassName());
return new StaticType($classReflection);
}
return new ErrorType();
case 'parent':
if ($this->getReflectionProvider()->hasClass($nameScope->getClassName())) {
$classReflection = $this->getReflectionProvider()->getClass($nameScope->getClassName());
if ($classReflection->getParentClass() !== null) {
return new ObjectType($classReflection->getParentClass()->getName());
}
}
return new NonexistentParentClassType();
}
}
if (!$nameScope->shouldBypassTypeAliases()) {
$typeAlias = $this->getTypeAliasResolver()->resolveTypeAlias($typeNode->name, $nameScope);
if ($typeAlias !== null) {
return $typeAlias;
}
}
$templateType = $nameScope->resolveTemplateTypeName($typeNode->name);
if ($templateType !== null) {
return $templateType;
}
$stringName = $nameScope->resolveStringName($typeNode->name);
if (str_contains($stringName, '-') && !str_starts_with($stringName, 'OCI-')) {
return new ErrorType();
}
if ($this->mightBeConstant($typeNode->name) && !$this->getReflectionProvider()->hasClass($stringName)) {
$constType = $this->tryResolveConstant($typeNode->name, $nameScope);
if ($constType !== null) {
return $constType;
}
}
return new ObjectType($stringName);
}
private function mightBeConstant(string $name): bool
{
return preg_match('((?:^|\\\\)[A-Z_][A-Z0-9_]*$)', $name) > 0;
}
private function tryResolveConstant(string $name, NameScope $nameScope): ?Type
{
foreach ($nameScope->resolveConstantNames($name) as $constName) {
$nameNode = new Name\FullyQualified(explode('\\', $constName));
$constType = $this->constantResolver->resolveConstant($nameNode, null);
if ($constType !== null) {
return $constType;
}
}
return null;
}
private function tryResolvePseudoTypeClassType(IdentifierTypeNode $typeNode, NameScope $nameScope): ?Type
{
if ($nameScope->hasUseAlias($typeNode->name)) {
return new ObjectType($nameScope->resolveStringName($typeNode->name));
}
if ($nameScope->getNamespace() === null) {
return null;
}
$className = $nameScope->resolveStringName($typeNode->name);
if ($this->getReflectionProvider()->hasClass($className)) {
return new ObjectType($className);
}
return null;
}
private function resolveThisTypeNode(ThisTypeNode $typeNode, NameScope $nameScope): Type
{
$className = $nameScope->getClassName();
if ($className !== null) {
if ($this->getReflectionProvider()->hasClass($className)) {
return new ThisType($this->getReflectionProvider()->getClass($className));
}
}
return new ErrorType();
}
private function resolveNullableTypeNode(NullableTypeNode $typeNode, NameScope $nameScope): Type
{
return TypeCombinator::union($this->resolve($typeNode->type, $nameScope), new NullType());
}
private function resolveUnionTypeNode(UnionTypeNode $typeNode, NameScope $nameScope): Type
{
$iterableTypeNodes = [];
$otherTypeNodes = [];
foreach ($typeNode->types as $innerTypeNode) {
if ($innerTypeNode instanceof ArrayTypeNode) {
$iterableTypeNodes[] = $innerTypeNode->type;
} else {
$otherTypeNodes[] = $innerTypeNode;
}
}
$otherTypeTypes = $this->resolveMultiple($otherTypeNodes, $nameScope);
if (count($iterableTypeNodes) > 0) {
$arrayTypeTypes = $this->resolveMultiple($iterableTypeNodes, $nameScope);
$arrayTypeType = TypeCombinator::union(...$arrayTypeTypes);
$addArray = true;
foreach ($otherTypeTypes as &$type) {
if (!$type->isIterable()->yes() || !$type->getIterableValueType()->isSuperTypeOf($arrayTypeType)->yes()) {
continue;
}
if ($type instanceof ObjectType && !$type instanceof GenericObjectType) {
$type = new IntersectionType([$type, new IterableType(new MixedType(), $arrayTypeType)]);
} elseif ($type instanceof ArrayType) {
$type = new ArrayType(new MixedType(), $arrayTypeType);
} elseif ($type instanceof ConstantArrayType) {
$type = new ArrayType(new MixedType(), $arrayTypeType);
} elseif ($type instanceof IterableType) {
$type = new IterableType(new MixedType(), $arrayTypeType);
} else {
continue;
}
$addArray = false;
}
if ($addArray) {
$otherTypeTypes[] = new ArrayType(new MixedType(), $arrayTypeType);
}
}
return TypeCombinator::union(...$otherTypeTypes);
}
private function resolveIntersectionTypeNode(IntersectionTypeNode $typeNode, NameScope $nameScope): Type
{
$types = $this->resolveMultiple($typeNode->types, $nameScope);
return TypeCombinator::intersect(...$types);
}
private function resolveConditionalTypeNode(ConditionalTypeNode $typeNode, NameScope $nameScope): Type
{
return new ConditionalType(
$this->resolve($typeNode->subjectType, $nameScope),
$this->resolve($typeNode->targetType, $nameScope),
$this->resolve($typeNode->if, $nameScope),
$this->resolve($typeNode->else, $nameScope),
$typeNode->negated,
);
}
private function resolveConditionalTypeForParameterNode(ConditionalTypeForParameterNode $typeNode, NameScope $nameScope): Type
{
return new ConditionalTypeForParameter(
$typeNode->parameterName,
$this->resolve($typeNode->targetType, $nameScope),
$this->resolve($typeNode->if, $nameScope),
$this->resolve($typeNode->else, $nameScope),
$typeNode->negated,
);
}
private function resolveArrayTypeNode(ArrayTypeNode $typeNode, NameScope $nameScope): Type
{
$itemType = $this->resolve($typeNode->type, $nameScope);
return new ArrayType(new BenevolentUnionType([new IntegerType(), new StringType()]), $itemType);
}
private function resolveGenericTypeNode(GenericTypeNode $typeNode, NameScope $nameScope): Type
{
$mainTypeName = strtolower($typeNode->type->name);
$genericTypes = $this->resolveMultiple($typeNode->genericTypes, $nameScope);
$variances = array_map(
static function (string $variance): TemplateTypeVariance {
switch ($variance) {
case GenericTypeNode::VARIANCE_INVARIANT:
return TemplateTypeVariance::createInvariant();
case GenericTypeNode::VARIANCE_COVARIANT:
return TemplateTypeVariance::createCovariant();
case GenericTypeNode::VARIANCE_CONTRAVARIANT:
return TemplateTypeVariance::createContravariant();
case GenericTypeNode::VARIANCE_BIVARIANT:
return TemplateTypeVariance::createBivariant();
}
},
$typeNode->variances,
);
if (in_array($mainTypeName, ['array', 'non-empty-array'], true)) {
if (count($genericTypes) === 1) { // array<ValueType>
$arrayType = new ArrayType(new BenevolentUnionType([new IntegerType(), new StringType()]), $genericTypes[0]);
} elseif (count($genericTypes) === 2) { // array<KeyType, ValueType>
$keyType = TypeCombinator::intersect($genericTypes[0]->toArrayKey(), new UnionType([
new IntegerType(),
new StringType(),
]))->toArrayKey();
$finiteTypes = $keyType->getFiniteTypes();
if (
count($finiteTypes) === 1
&& ($finiteTypes[0] instanceof ConstantStringType || $finiteTypes[0] instanceof ConstantIntegerType)
) {
$arrayBuilder = ConstantArrayTypeBuilder::createEmpty();
$arrayBuilder->setOffsetValueType($finiteTypes[0], $genericTypes[1], true);
$arrayType = $arrayBuilder->getArray();
} else {
$arrayType = new ArrayType($keyType, $genericTypes[1]);
}
} else {
return new ErrorType();
}
if ($mainTypeName === 'non-empty-array') {
return TypeCombinator::intersect($arrayType, new NonEmptyArrayType());
}
return $arrayType;
} elseif (in_array($mainTypeName, ['list', 'non-empty-list'], true)) {
if (count($genericTypes) === 1) { // list<ValueType>
$listType = TypeCombinator::intersect(new ArrayType(IntegerRangeType::createAllGreaterThanOrEqualTo(0), $genericTypes[0]), new AccessoryArrayListType());
if ($mainTypeName === 'non-empty-list') {
return TypeCombinator::intersect($listType, new NonEmptyArrayType());
}
return $listType;
}
return new ErrorType();
} elseif ($mainTypeName === 'iterable') {
if (count($genericTypes) === 1) { // iterable<ValueType>
return new IterableType(new MixedType(true), $genericTypes[0]);
}
if (count($genericTypes) === 2) { // iterable<KeyType, ValueType>
return new IterableType($genericTypes[0], $genericTypes[1]);
}
} elseif (in_array($mainTypeName, ['class-string', 'interface-string'], true)) {
if (count($genericTypes) === 1) {
$genericType = $genericTypes[0];
if ($genericType->isObject()->yes() || $genericType instanceof MixedType) {
return new GenericClassStringType($genericType);
}
}
return new ErrorType();
} elseif ($mainTypeName === 'enum-string') {
if (count($genericTypes) === 1) {
$genericType = $genericTypes[0];
return new GenericClassStringType(TypeCombinator::intersect($genericType, new ObjectType('UnitEnum')));
}
return new ErrorType();
} elseif ($mainTypeName === 'int') {
if (count($genericTypes) === 2) { // int<min, max>, int<1, 3>
if ($genericTypes[0] instanceof ConstantIntegerType) {
$min = $genericTypes[0]->getValue();
} elseif ($typeNode->genericTypes[0] instanceof IdentifierTypeNode && $typeNode->genericTypes[0]->name === 'min') {
$min = null;
} else {
return new ErrorType();
}
if ($genericTypes[1] instanceof ConstantIntegerType) {
$max = $genericTypes[1]->getValue();
} elseif ($typeNode->genericTypes[1] instanceof IdentifierTypeNode && $typeNode->genericTypes[1]->name === 'max') {
$max = null;
} else {
return new ErrorType();
}
return IntegerRangeType::fromInterval($min, $max);
}
} elseif ($mainTypeName === 'key-of') {
if (count($genericTypes) === 1) { // key-of<ValueType>
$type = new KeyOfType($genericTypes[0]);
return $type->isResolvable() ? $type->resolve() : $type;
}
return new ErrorType();
} elseif ($mainTypeName === 'value-of') {
if (count($genericTypes) === 1) { // value-of<ValueType>
$type = new ValueOfType($genericTypes[0]);
return $type->isResolvable() ? $type->resolve() : $type;
}
return new ErrorType();
} elseif ($mainTypeName === 'int-mask-of') {
if (count($genericTypes) === 1) { // int-mask-of<Class::CONST*>
$maskType = $this->expandIntMaskToType($genericTypes[0]);
if ($maskType !== null) {
return $maskType;
}
}
return new ErrorType();
} elseif ($mainTypeName === 'int-mask') {
if (count($genericTypes) > 0) { // int-mask<1, 2, 4>
$maskType = $this->expandIntMaskToType(TypeCombinator::union(...$genericTypes));
if ($maskType !== null) {
return $maskType;
}
}
return new ErrorType();
} elseif ($mainTypeName === '__benevolent') {
if (count($genericTypes) === 1) {
return TypeUtils::toBenevolentUnion($genericTypes[0]);
}
return new ErrorType();
} elseif ($mainTypeName === 'template-type') {
if (count($genericTypes) === 3) {
$result = [];
/** @var class-string $ancestorClassName */
foreach ($genericTypes[1]->getObjectClassNames() as $ancestorClassName) {
foreach ($genericTypes[2]->getConstantStrings() as $templateTypeName) {
$result[] = new GetTemplateTypeType($genericTypes[0], $ancestorClassName, $templateTypeName->getValue());
}
}
return TypeCombinator::union(...$result);
}
return new ErrorType();
} elseif ($mainTypeName === 'new') {
if (count($genericTypes) === 1) {
$type = new NewObjectType($genericTypes[0]);
return $type->isResolvable() ? $type->resolve() : $type;
}
return new ErrorType();
} elseif ($mainTypeName === 'static') {
if ($nameScope->getClassName() !== null && $this->getReflectionProvider()->hasClass($nameScope->getClassName())) {
$classReflection = $this->getReflectionProvider()->getClass($nameScope->getClassName());
return new GenericStaticType($classReflection, $genericTypes, null, $variances);
}
return new ErrorType();
}
$mainType = $this->resolveIdentifierTypeNode($typeNode->type, $nameScope);
$mainTypeObjectClassNames = $mainType->getObjectClassNames();
if (count($mainTypeObjectClassNames) > 1) {
if ($mainType instanceof TemplateType) {
return new ErrorType();
}
throw new ShouldNotHappenException();
}
$mainTypeClassName = $mainTypeObjectClassNames[0] ?? null;
if ($mainTypeClassName !== null) {
if (!$this->getReflectionProvider()->hasClass($mainTypeClassName)) {
return new GenericObjectType($mainTypeClassName, $genericTypes, null, null, $variances);
}
$classReflection = $this->getReflectionProvider()->getClass($mainTypeClassName);
if ($classReflection->isGeneric()) {
$templateTypes = array_values($classReflection->getTemplateTypeMap()->getTypes());
for ($i = count($genericTypes), $templateTypesCount = count($templateTypes); $i < $templateTypesCount; $i++) {
$templateType = $templateTypes[$i];
if (!$templateType instanceof TemplateType || $templateType->getDefault() === null) {
continue;
}
$genericTypes[] = $templateType->getDefault();
}
if (in_array($mainTypeClassName, [
Traversable::class,
IteratorAggregate::class,
Iterator::class,
], true)) {
if (count($genericTypes) === 1) {
return new GenericObjectType($mainTypeClassName, [
new MixedType(true),
$genericTypes[0],
], null, null, [
TemplateTypeVariance::createInvariant(),
$variances[0],
]);
}
if (count($genericTypes) === 2) {
return new GenericObjectType($mainTypeClassName, [
$genericTypes[0],
$genericTypes[1],
], null, null, [
$variances[0],
$variances[1],
]);
}
}
if ($mainTypeClassName === Generator::class) {
if (count($genericTypes) === 1) {
$mixed = new MixedType(true);
return new GenericObjectType($mainTypeClassName, [
$mixed,
$genericTypes[0],
$mixed,
$mixed,
], null, null, [
TemplateTypeVariance::createInvariant(),
$variances[0],
TemplateTypeVariance::createInvariant(),
TemplateTypeVariance::createInvariant(),
]);
}
if (count($genericTypes) === 2) {
$mixed = new MixedType(true);
return new GenericObjectType($mainTypeClassName, [
$genericTypes[0],
$genericTypes[1],
$mixed,
$mixed,
], null, null, [
$variances[0],
$variances[1],
TemplateTypeVariance::createInvariant(),
TemplateTypeVariance::createInvariant(),
]);
}
}
if (!$mainType->isIterable()->yes()) {
return new GenericObjectType($mainTypeClassName, $genericTypes, null, null, $variances);
}
if (
count($genericTypes) !== 1
|| $classReflection->getTemplateTypeMap()->count() === 1
) {
return new GenericObjectType($mainTypeClassName, $genericTypes, null, null, $variances);
}
}
}
if ($mainType->isIterable()->yes()) {
if ($mainTypeClassName !== null) {
if (isset($this->genericTypeResolvingStack[$mainTypeClassName])) {
return new ErrorType();
}
$this->genericTypeResolvingStack[$mainTypeClassName] = true;
}
try {
if (count($genericTypes) === 1) { // Foo<ValueType>
return TypeCombinator::intersect(
$mainType,
new IterableType(new MixedType(true), $genericTypes[0]),
);
}
if (count($genericTypes) === 2) { // Foo<KeyType, ValueType>
return TypeCombinator::intersect(
$mainType,
new IterableType($genericTypes[0], $genericTypes[1]),
);
}
} finally {
if ($mainTypeClassName !== null) {
unset($this->genericTypeResolvingStack[$mainTypeClassName]);
}
}
}
if ($mainTypeClassName !== null) {
return new GenericObjectType($mainTypeClassName, $genericTypes, null, null, $variances);
}
return new ErrorType();
}
private function resolveCallableTypeNode(CallableTypeNode $typeNode, NameScope $nameScope): Type
{
$templateTags = [];
if (count($typeNode->templateTypes) > 0) {
foreach ($typeNode->templateTypes as $templateType) {
$templateTags[$templateType->name] = new TemplateTag(
$templateType->name,
$templateType->bound !== null
? $this->resolve($templateType->bound, $nameScope)
: new MixedType(),
$templateType->default !== null
? $this->resolve($templateType->default, $nameScope)
: null,
TemplateTypeVariance::createInvariant(),
);
}
$templateTypeScope = TemplateTypeScope::createWithAnonymousFunction();
$templateTypeMap = new TemplateTypeMap(array_map(
static fn (TemplateTag $tag): Type => TemplateTypeFactory::fromTemplateTag($templateTypeScope, $tag),
$templateTags,
));
$nameScope = $nameScope->withTemplateTypeMap($templateTypeMap);
} else {
$templateTypeMap = TemplateTypeMap::createEmpty();
}
$mainType = $this->resolve($typeNode->identifier, $nameScope);
$isVariadic = false;
$parameters = array_values(array_map(
function (CallableTypeParameterNode $parameterNode) use ($nameScope, &$isVariadic): NativeParameterReflection {
$isVariadic = $isVariadic || $parameterNode->isVariadic;
$parameterName = $parameterNode->parameterName;
if (str_starts_with($parameterName, '$')) {
$parameterName = substr($parameterName, 1);
}
return new NativeParameterReflection(
$parameterName,
$parameterNode->isOptional || $parameterNode->isVariadic,